Hitachi U-5100 Instruction Manual page 80

3.2 Automatic Continuous Measurement (6-cell auto mode)
Setting Item
Curve Select a sample to be used for auto zero (operation
Autozero for adjusting the absorbance to zero) in standard
(indicated measurement between STD1 and Blank.
only when
1) STD1
1st Order is
Selected when the auto zero sample in standard
selected for
measurement is a standard solution whose
Curve Type)
concentration is 0 (STD1). In standard
measurement, auto zero is automatically performed
with STD1. With STD1 selected, the absorbance is
adjusted to 0 with a solution whose concentration is
0. It is therefore recommended to specify 1) ON for
Thru Zero in Table 3-3.
2) Blank
Selected when the auto zero sample in standard
measurement is other than a standard solution whose
concentration is 0 (blank). In standard
measurement, auto zero is automatically performed
with this blank solution. Normally, select 2) OFF set
for Thru Zero in Table 3-3.
* For details of setting, refer to Explanation 3-3 and
Explanation 3-4.
SAMP. You can select a sample for auto zero in sample
Autozero measurement or specify avoidance of automatic
execution of auto zero.
1) ON
Selected when the auto zero sample in sample
measurement is the same as the one in standard
measurement. Auto zero is automatically carried
out.
2) Sample Blank
Selected when the auto zero sample in sample
measurement is a sample blank. Auto zero is
automatically carried out with the sample blank.
Used for calculating the quantitative value by
subtracting the sample blank absorbance from the
sample absorbance.
3) OFF
Auto zero is not carried out automatically in sample
measurement. You can carry out auto zero
manually.
* For details of setting, refer to Explanation 3-3 and
Explanation 3-4.
Autozero int. 1) 5
Auto zero is automatically carried out for every 5
measurements.
2) 1
Auto zero is automatically carried out for each
sample.
No. of Set the number of samples to be measured.
Sample
The number is settable in a range of 1 to 150.
3 - 16
Description
(cont'd)